Fuel-feeding means for internal-combustion engines.



P. ABLE. FUEL FEEDING-MEANS FOR INTERNAL COMBUSTION ENGINES.

APPLICATION Huzo APR. n, ma. r 4

Patented Jan. 7, .1919

3 sums-sum 1,

r P. ABLE. FUEL FEEDING MEANS FOR INTERNAL COMBUSTION ENGINES.

- APPLICATION FILED APR. H 1918- 1,290,029. Patented Jan. 7, 1919;

3 SHEETS SHEET Z I W/wv/ 1 P-. ABLE.

FUEL FEEDING MEANS FOR INTERNAL COMBUSTION ENG|NS.

APPLICATION FILED APR. H. IBIS Patented Jan. 7, 1919. 7

3 SHEETS-SHEET 3- a means that will satisfactorily accomplish PAUL ABLE, OF CHICAGO, ILLINOIS.

FUEL-FEEDING MEANS FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

Patented Jan. 7, 1919.

Application filed April 11, 1918. Serial No. 228,041.

To all whom it may concern:

Be it known that I, PAUL ABLE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Fuel Feeding Means for Internal-Combustion Engines, of which the following is aspecification.

My invention relates to improvements in fuel feeding means for internal combustion engines.

One of the objects of my invention is to provide means for feeding fuel to the cylinders of internal combustion engines.

While my main object has been to perfect the aforesaid results, and which I have succeeded in doing in the embodiment of the accompanying drawings, in which the device is clearly exemplified, it also extends to certain features of detail that are specifically described as illustrated, and more clearly defined in the appended claims, and other features, which will become readily apparent to persons skilled in the art, from a consideration of the following description, in connection with the drawings, wherein:

Figure 1 is a side view of one side of an internal combustion engine, showing my device applied. thereto.

" Fig. 2 is a side view of the other side. front end of the engine showing a part of the device.

Fig. 3 is an elevation of the casing containing the mixing chamber and a part of the fluid chamber, the walls ofthe latter in section, taken through line 3-3 of Fig. 4.

Fig. 4 is a side elevation of said casing, looking in the direction of the arrow 4*.

Fig. 5 is a tranverse View through said casing taken on line 5-5 of Fig. 3.

Fig. 6 is a section taken on line 6--6 of Fig. 4.

Fig. 7 is an enlarged elevation of the fuel pump showing parts in section.

Fig. 8 is an enlarged section of a threeway valve taken on line 8-8 of Fig. 2.

In all the views the same reference charactors are used to indicate similar parts.

The casing 10 contains a fluid conduit 11. a mixing chamber 12 and a liquid chamber 13. At the bottom of the fluid conduit 11 is the air intake 14 controlled by a butterfly valve or throttle 15 which is rotatable onits axis 16, by a rod 17. that has a part 18 upturned and inturned, as 3b 1 the salient to provide a continuation of an overflow pipe 24.

A pipe 25 extends into the fuel chamberv 13 and terminates above the rib 22 and constitutes an upper terminal for the fuel feed pipe 26.

The wall of the casing 10 at-onc side of the fluid conduit 11 and below the mixing chamber 12 is thickened into a rib 27. The rib is bored from the bottom, as at 28, and plugged, as at 29. It has a smaller bore 30 to provide a nozzle opening into the mixing chamber. The rib 27 is transversely bored, as at 31, to connect the interior of the nozzle with the fuel chamber 13. It is then plugged, as at 32.

The upper end of the nozzle and of the overflow pipe 23 terminatein substantially the same horizontal plane so that the fuel chamber 13 is always filled with fuel uptothis plane and the level is maintained near to the top of the nozzle: To maintain this level it is only necessary that fluid fuel shall be introduced into the fuel chamber 13 faster than it is used by the engine,

Arranged above and in the same axial plane of the nozzle is a needle valve 33, having a tapered point 34 adapted to fit into a correspondingly tapered depression 35, to close the mouth of the nozzle 28. The needle valve is provided with a threaded part 36.

and on its upper end is a wheel 37 by which it may be rotated. A stop 38 holds the wheel in. adjusted position. This valve regulates the quantity of fuel to be fed into the mixing chamber 12, from the fuel chamber 13'at each intake stroke of the engine, and being tapered it assists in atomizing the fuel.

The exhaust pipe of the engine is to be screwed into the opening 39 and a fitting 40 is attached to the lower end of the casing 10 so that the air drawn thereinto is hot. being taken from near the outer surface of the exhaust ipe.

41 is a tan for containing the lighter oils,

such as gasolene. It is connected to a threeway valve 42 by a pipe L8. A larger tank for the fuel, ,to aiford the main supply for the engine, is contained in the base 44 and it is connected to the three way valve by the pipe 45.

same directions, as usual in pumps.

A fuel feed pipe 26 is connected to the check valve 54:, so that upon reciprocation of the pump plunger, fuel may be fed into the fuel chamber 13 from either of the fuel reservoirs, dependent upon the position of the three-way valve 42, as more clearly shown in Fig. 8.

The overflow pipe 24: branches at the threeway valve 55 anda pipe 56 enters the top of the gasolene reservoir 41 and the pipe 57 enters the reservoir for the heavier oil within the engine base ea. 1

A check valve 58 is placed in, the pipe 24 so that the suction effect of the engine to draw oil into the fuel chamber 13 will not be impaired or modified by the open pipe 24:.

It will be observed that the check valve 58 will be closed by sub-atmospheric pressure in the fuel chamber, but will open to permit fluid to return to either reservoir.

As the ingoing air through the conduit 11 passes into the mixing chamber 12 it atomprising a casting having a horizontally and vertically disposed air duct; a solid portion inside of the knee formed by the intersection of said conduit portions, perforated to provide a nozzle opening into the horizontal portion, and having a chamber for fuel, at one side of the vertical portion and below the horizontal portion, provided with an opening int said nozzle; a proiection from the wall of said chamberterminating near the top thereof and below the termination of said nozzle, perforated to provide an overflow of fuel from said chamber; a pipe connecting the overflow to the source of fuel chamber to a source of fuel supply,

In testimony whereof I hereunto set my hand.

PAUL A BLE.

supply and a fuel inlet pipe connecting said 

